Linux/TUSB9260: TUSB9260 with no SPI flash

Hyunho Shin

Prodigy 210 points

Part Number: TUSB9260
Other Parts Discussed in Thread: TUSB9261

Tool/software: Linux

I'm using TUSB9260 with no SPI flash

And it connect with linux machine

usb connection message is like below

---

[ 3700.114000] usb 1-1.1: new high-speed USB device number 6 using nxp-ehci
[ 3700.202000] usb 1-1.1: New USB device found, idVendor=0451, idProduct=926b
[ 3700.203000] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3700.210000] usb 1-1.1: Product: TUSB9260 Boot Loader
[ 3700.215000] usb 1-1.1: Manufacturer: Texas Instruments
[ 3700.220000] usb 1-1.1: SerialNumber: KTH000000001
[ 3700.230000] generic-usb 0003:0451:926B.0003: hiddev0: USB HID v1.10 Device [Texas Instruments TUSB9260 Boot Loader] on usb-nxp-ehci-1.1/input0

---

how can i put firmware into TUSB9260?

(Board has no SPI flash)

over 5 years ago

0 Hyunho Shin over 5 years ago

Prodigy 210 points

I want to get linux flash burner source code

0 Hyunho Shin over 5 years ago

Prodigy 210 points

It seems possible as per : e2e.ti.com/.../588360

0 Brian Quach over 5 years ago in reply to Hyunho Shin

TI__Expert 4325 points

Hi Shin,

You cannot use TUSB9261 or TUSB9260 without SPI flash. There is no where to store the FW without a flash. The chip only has a bootloader. TUSB9260 is old, you should use TUSB9261.

Regards,

Brian

0 Hyunho Shin over 5 years ago in reply to Brian Quach

Prodigy 210 points

Can i download firmware for TUSB9260 from host processor? I read TUSB9260 datasheet that fuction(down load from host processor)

0 Hyunho Shin over 5 years ago in reply to Hyunho Shin

Prodigy 210 points

below is datasheet of TUSB9260(page 8)

It seem possible to download firmware from host processor.

--------------

3 OPERATION
3.1 General Functionality
The TUSB9260 ROM contains boot code that executes after a global reset which performs the initial
con-figuration required to load a firmware image from an attached SPI flash memory to local RAM. In the
ab-sence of an attached SPI flash memory or a valid image in the SPI flash memory, the firmware will idle
and wait for a connection from a USB host through its HID interface which is also configured from the boot
code. The latter can be accomplished using a custom application or driver to load the firmware from a file
resident on the host system.

0 Brian Quach over 5 years ago in reply to Hyunho Shin

TI__Expert 4325 points

Hi Hyunho,

That was a planned feature but it was never tested and we do not have any SW to test it. I recommend you implement a SPI flash and use TUSB9261.

Regards,

Brian

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Linux/TUSB9260: TUSB9260 with no SPI flash